using DG.Tweening;
using UnityEngine;

public class BackgroundDimmer : MonoBehaviour
{
    [SerializeField] private CanvasGroup _canvasGroup;
    [SerializeField] private CanvasGroup _menuBackground;
    [SerializeField, Range(0f, 1f)] private float _gameplayAlpha = 0.3f;
    [SerializeField, Min(0f)] private float _fadeDuration = 1f;

    private Tween _dimmerFadeTween;
    private Tween _menuBackgroundFadeTween;

    private void Awake()
    {
        _canvasGroup.alpha = 0f;
        _menuBackground.alpha = 1f;
    }

    private void OnDestroy()
    {
        _dimmerFadeTween?.Kill();
        _menuBackgroundFadeTween?.Kill();
    }

    public void ShowGameplay()
        => FadeTo(_gameplayAlpha, 0f);

    public void ShowMenu()
        => FadeTo(0f, 1f);

    private void FadeTo(float dimmerAlpha, float menuBackgroundAlpha)
    {
        _dimmerFadeTween?.Kill();
        _menuBackgroundFadeTween?.Kill();

        _dimmerFadeTween = _canvasGroup
            .DOFade(dimmerAlpha, _fadeDuration)
            .SetUpdate(true);
        _menuBackgroundFadeTween = _menuBackground
            .DOFade(menuBackgroundAlpha, _fadeDuration)
            .SetUpdate(true);

        _dimmerFadeTween.PlayForward();
        _menuBackgroundFadeTween.PlayForward();
    }
}